<template>
	<section>
		<!--工具条-->
		<el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
			<el-form :inline="true">
				<el-form-item>
					<el-input v-model="keyword" placeholder="请输入关键字"></el-input>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" v-on:click="keywordQuery">查询</el-button>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" @click="handleAdd">新增</el-button>
				</el-form-item>
			</el-form>
		</el-col>

		<!--列表-->
		<el-table :data="menus" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">
			<el-table-column type="selection" width="55">
			</el-table-column>
			<el-table-column type="index" width="60">
			</el-table-column>
      <el-table-column type="index" label="序号" width="60">
      </el-table-column>
      <el-table-column prop="name" label="姓名" width="150">
      </el-table-column>
      <el-table-column prop="component" label="关联" width="150">
      </el-table-column>
      <el-table-column prop="url" label="路径" width="100">
      </el-table-column>
      <el-table-column prop="icon" label="图标" width="150">
      </el-table-column>
      <el-table-column prop="index" label="索引" width="100">
      </el-table-column>
      <el-table-column prop="parent.name" label="上级菜单" width="100">
      </el-table-column>
      <el-table-column prop="parent.intro" label="菜单介绍" width="100">
      </el-table-column>
      <el-table-column prop="state" label="状态" width="100">
        <template scope="scope">
          <span v-if="scope.row.state==1" style="color: green">启用</span>
          <span v-else style="color: red">禁用</span>
        </template>
      </el-table-column>
			<el-table-column label="操作" width="150">
				<template scope="scope">
					<el-button size="small" @click="handleSave(scope.$index, scope.row)">编辑</el-button>
					<el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
				</template>
			</el-table-column>
		</el-table>

		<!--工具条-->
		<el-col :span="24" class="toolbar">
			<el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
			<el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                     :page-size="pageSize" :total="totals" :current-page="currentPage" style="float:right;">
			</el-pagination>
		</el-col>

		<!--新增和编辑界面-->
		<el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
			<el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
				<el-form-item label="菜单名称" prop="name">
					<el-input v-model="saveForm.name" auto-complete="off"></el-input>
				</el-form-item>
        <el-form-item label="关联" prop="component">
          <el-input v-model="saveForm.component" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="路径" prop="url">
          <el-input v-model="saveForm.url" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="图标" prop="icon">
          <el-input v-model="saveForm.icon" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="索引" prop="index">
          <el-input v-model="saveForm.index" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="上级菜单">
          <!--<el-input v-model="saveForm.parentId" auto-complete="off"></el-input>-->
          <el-cascader
              v-model="saveForm.parentId"
              :options="menuTree"
              :props="{checkStrictly: true,label: 'name', value: 'id'}"
              clearable></el-cascader>
        </el-form-item>
        <el-form-item label="菜单介绍" prop="intro">
          <el-input v-model="saveForm.intro" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="启用状态">
          <el-radio-group v-model="saveForm.state">
            <el-radio class="radio" :label="1">启用</el-radio>
            <el-radio class="radio" :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
			</el-form>
			<div slot="footer" class="dialog-footer">
				<el-button @click.native="saveFormVisible = false">取消</el-button>
				<el-button type="primary" @click.native="saveSubmit">提交</el-button>
			</div>
		</el-dialog>
	</section>
</template>

<script>

	export default {
    data() {
      return {
        //分页相关的模型数据
        menus: [],     //绑定到表格 - 显示列表数据 - 请求完成之后
        totals: 0,          //总数量 - 计算分页栏 -  请求完成之
        currentPage: 1,     //当前页 - 分页栏默认当前页显示
        pageSize: 5,        //每页显示的条数  - 计算分页栏
        listLoading: false, //表格上的加载框

        keyword: '',

        sels: [],

        //添加和修改
        saveFormVisible: false,//编辑界面是否显示
        title: '',
        saveLoading: false,
        saveFormRules: {
          name: [
            {required: true, message: '请输入姓名', trigger: 'blur'}
          ]
        },
        //编辑界面数据
        saveForm: {
          id: null,
          name: '',
          component: '',
          url: '',
          icon: '',
          index: null,
          parentId: null,
          intro: '',
          state: 1
        },

        addFormVisible: false,//新增界面是否显示
        addLoading: false,
        addFormRules: {
          name: [
            {required: true, message: '请输入姓名', trigger: 'blur'}
          ]
        },
        //新增界面数据
        addForm: {
          id: null,
          name: '',
          component: '',
          url: '',
          icon: '',
          index: null,
          parentId: null,
          intro: '',
          state: 1
        },

        managers: [],

        menuTree: []

      }
    },
    methods: {

      //1.获取菜单列表
      getMenus() {
        let para = {
          currentPage: this.currentPage,	//当前页
          pageSize: this.pageSize,		//每页显示的条数
          keyword: this.keyword
        };

        this.listLoading = true;			//显示加载框/忙等框

        this.$http.post("/menu", para).then(res => {
          //给totals赋值 - 计算分页栏
          this.totals = res.data.totals;
          //赋值分页数据 - 显示当前页的分页数据
          this.menus = res.data.data;
          //隐藏加载框/忙等框
          this.listLoading = false;
        }).catch(res => {
          this.$message.error('系统繁忙，请稍后重试!!!');
        });
      },

      //2.点击某一页触发的方法
      handleCurrentChange(currentPage) {
        //当前页
        this.currentPage = currentPage;
        this.getMenus();
      },

      //3.关键字查询
      keywordQuery() {
        this.currentPage = 1;
        this.getMenus();
      },

      //4.删除
      handleDel: function (index, row) {
        this.$confirm('确认删除该记录吗?', '提示', {
          type: 'warning'
        }).then(() => {
          this.listLoading = true;
          this.$http.delete("/menu/" + row.id).then(res => {
            if (res.data.success) {
              let totalPage = Math.ceil(this.totals / this.pageSize)
              if (this.currentPage == totalPage && (this.totals - 1) % this.pageSize == 0 && this.currentPage - 1 != 0) {
                this.currentPage = this.currentPage - 1;
              }
              this.getMenus();
            } else {
              this.$message.error("系统繁忙，请稍后重试！！！");
            }
          }).catch(res => {
            this.$message.error("系统繁忙，请稍后重试！！！");
          })
          this.listLoading = false;
        }).catch(() => {

        });
      },

      //5.选项改变的时候触发：参数时每一个选中的对象
      selsChange: function (sels) {
        this.sels = sels;
      },

      //6.批量删除
      batchRemove: function () {
        var ids = this.sels.map(item => item.id);//数组 [1,3,5]
        this.$confirm('确认删除选中记录吗？', '提示', {
          type: 'warning'
        }).then(() => { //点击确定走这里
          this.listLoading = true;
          this.$http.patch("/menu", ids).then(res => {
            if (res.data.success) {
              this.currentPage = 1;
              this.getMenus();
            } else {
              this.$message.error("系统繁忙，请稍后重试！！！")
            }
            this.listLoading = false;
          }).catch(res => {
            this.$message.error("系统繁忙，请稍后重试！！！")
            this.listLoading = false;
          })
        }).catch(() => {
        });
      },

      //显示编辑界面
      handleSave: function (index, row) {
        this.title = "编辑";
        this.saveForm = Object.assign({}, row);
        this.getManagers();
        this.getMenuTree();
        this.saveFormVisible = true;
      },

      //显示新增界面
      handleAdd: function () {
        this.title = "新增";
        this.saveForm = {
          id: null,
          name: '',
          component: '',
          url: '',
          icon: '',
          index: null,
          parentId: null,
          intro: '',
          state: 1
        };
        this.getManagers();
        this.getMenuTree();
        this.saveFormVisible = true;
      },

      //编辑
      saveSubmit: function () {
        let parentId = this.saveForm.parentId;
        if (parentId == null || parentId.length == 0){
          this.saveForm.parentId = null;
        } else if(parentId.length){
          this.saveForm.parentId = parentId[parentId.length -1];
        }else {
          this.saveForm.parentId = parentId;
        }
        this.$refs.saveForm.validate((valid) => {
          if (valid) {
            this.$confirm('确认提交吗？', '提示', {}).then(() => {
              this.saveLoading = true;
              this.$http.put("/menu",this.saveForm).then(res => {
                if (res.data.success) {
                  this.getMenus();
                } else {
                  this.$message.error("系统繁忙，请稍后重试！！！");
                }
                this.listLoading = false;
              }).catch(res => {
                this.$message.error("系统繁忙，请稍后重试！！！");
                this.listLoading = false;
              })
              this.saveFormVisible = false;
            });
          }
        });
      },

      getManagers(){
        this.$http.get("/employee").then(res => {
          this.managers = res.data;
        })
      },

      getMenuTree(){
        this.$http.get("/menu/menuTree").then(res=>{
          this.menuTree = res.data;
          console.log(this.menuTree);
        })
      }

    },
    mounted() {
      this.getMenus();
    }
  }
</script>

<style scoped>

</style>